Instrument Response Modeling and Simulation for the GLAST Burst Monitor

Journal Article · Thu Jul 12 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2757466· OSTI ID:21067327

Kippen, R M; Hoover, A S; Wallace, M S ^[1]; Pendleton, G N ^[2]; Meegan, C A; Fishman, G J; Wilson-Hodge, C A; Kouveliotou, C ^[3]; Lichti, G G; Kienlin, A von; Steinle, H; Diehl, R; Greiner, J ^[4]; Preece, R D; Connaughton, V; Briggs, M S; Paciesas, W S; Bhat, P N ^[5]

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1. Los Alamos National Laboratory, Los Alamos, NM, 87545 (United States)
2. Dynetics, Inc., Huntsville, AL, 35806 (United States)
3. NASA/National Space Science and Technology Center - NSSTC, Huntsville, AL, 35899 (United States)
4. Max-Planck-Institut fuer Extraterrestrische Physik, 85748 Garching (Germany)
5. University of Alabama at Huntsville/NSSTC, Huntsville, AL, 35899 (United States)

The GLAST Burst Monitor (GBM) is designed to provide wide field of view observations of gamma-ray bursts and other fast transient sources in the energy range 10 keV to 30 MeV. The GBM is composed of several unshielded and uncollimated scintillation detectors (twelve NaI and two BGO) that are widely dispersed about the GLAST spacecraft. As a result, reconstructing source locations, energy spectra, and temporal properties from GBM data requires detailed knowledge of the detectors' response to both direct radiation as well as that scattered from the spacecraft and Earth's atmosphere. This full GBM instrument response will be captured in the form of a response function database that is derived from computer modeling and simulation. The simulation system is based on the GEANT4 Monte Carlo radiation transport simulation toolset, and is being extensively validated against calibrated experimental GBM data. We discuss the architecture of the GBM simulation and modeling system and describe how its products will be used for analysis of observed GBM data. Companion papers describe the status of validating the system.

• OSTI ID: 21067327
• Journal Information: AIP Conference Proceedings, Vol. 921, Issue 1; Conference: 1. GLAST symposium, Stanford, CA (United States), 5-8 Feb 2007; Other Information: DOI: 10.1063/1.2757466; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BGO DETECTORS
COMPUTERIZED SIMULATION
COSMIC GAMMA BURSTS
COSMIC GAMMA SOURCES
COSMIC PHOTONS
ENERGY SPECTRA
G CODES
GAMMA DETECTION
KEV RANGE
MEV RANGE
MONTE CARLO METHOD
NAI DETECTORS
PHOTON EMISSION
RADIATION MONITORING
RADIATION TRANSPORT
RESPONSE FUNCTIONS
TRANSIENTS